Forum Discussion

F5Pro's avatar
F5Pro
Explorer
Feb 27, 2020

Motorcraft 10W30, 5W40, Rotella or Mobil 1 for 6.7

Just curious about what oil to put into my Powerstroke. Book calls for 5W40 (full synthetic) for towing 1000 miles. Local Ford dealer uses 10W30 as standard oil change oil. There are other diesel oi...
Tow Vehicles
Lwiddis's avatar
Lwiddis
Nomad III
Feb 28, 2020
"Book calls for 5W40 (full synthetic)...Local Ford dealer uses 10W30 as standard oil change oil."

Interesting a Ford dealer has decided that Ford doesn't know what is best for its engines.

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